toyota 4x4 History - upgrades Rock Trails - Photo 12

Upgrades let Toy owners push their rigs onto tougher trails. Along with the aftermarket Birfields, we would get chromoly axleshafts, high-pinion third members and drive flanges cannibalized from FJ80s, and hydraulic-assist steering setups. No aftermarket locking hub would ever surpass the reliability of the stock Aisin units. In later years, hardened hub and knuckle studs, upgraded knuckles, custom axlehousings, cryogenically hardened axle components, and Marlin's super axle seals would fortify the drivelines even more.